MEANING
A range calculated from sample data that, under a specified procedure, has a stated long-run coverage rate for a parameter.
Use it for
Name a method-based range used to communicate estimation uncertainty.Report uncertainty around an estimate without overstating what the interval means.
Words that belong together
- 95% confidence interval
- confidence interval for a mean
- interval estimate
On the page
The confidence interval was wide, reflecting the small sample and uncertain estimate.
Nearby words
Word forms
- Base
- confidence interval
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Usage notes
In frequentist use, the confidence level describes repeated-sampling coverage, not the probability that a fixed parameter lies in this particular interval.
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